Home / 1,556.30-2,147.69-848.14

Finding the Fourth Proportional to 1,556.30, 2,147.69 and 848.14

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Solution

The fourth proportional to 1,556.30, 2,147.69 and 848.14 is: 1,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.30 : 2,147.69 = 848.14 : x
  2. Step 2: Convert to fraction form
    1,556.30/2,147.69 = 848.14/x
  3. Step 3: Cross multiply
    1,556.30x = 2,147.69 × 848.14
  4. Step 4: Simplify right side
    1,556.30x = 1,821,531.06
  5. Step 5: Solve for x
    x = 1,821,531.06/1,556.30
  6. Step 6: Final answer
    x = 1,170.42

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.